Vehicle Tracking System

Abstract

To provide a vehicle tracking system capable of identifying a vehicle even when failure occurs in a sensor or a system.SOLUTION: A vehicle tracking system includes a vehicle tracking sensor system (100) that grants a temporary vehicle number relative to a vehicle that a sensor detected and outputs a signal including the temporary vehicle number and position information on an absolute coordinate system of the detected vehicle and an edge computing (300) for updating the temporary vehicle number to a vehicle number output from a vehicle number management PC (200) when parking of the vehicle is completed.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] This application relates to vehicle tracking systems. [Background technology]

[0002] The transportation of goods by tractor-pulled trailers is an important part of global commerce. In this application, the term trailer refers to the cargo vehicle portion that carries the cargo, and the term tractor refers to the vehicle that pulls the trailer.

[0003] Recently, there has been a rapid expansion in business demand, typified by e-commerce (electronic commerce), which involves the buying and selling of goods such as home appliances and food, or services, over the Internet.

[0004] On the other hand, there is a shortage of drivers to transport and deliver goods, and furthermore, trailers moving or parked within logistics facilities cannot be adequately identified and managed, so drivers take a long time to find the desired trailer and goods cannot be loaded onto the trailer efficiently. As a result, logistics personnel and drivers engaged in these tasks are sometimes forced to work long hours, and solving this problem has become a social issue, and various technologies have been developed to solve this problem.

[0005] For example, the conventional trailer tracking system disclosed in Patent Document 1 is equipped with a navigation system for acquiring location information and an RFID (Radio Frequency Identifier) ​​reader on the tractor, and an RFID tag on the trailer.The system then uses a PC (Personal Computer) installed in a remote monitoring room to receive RFID tag information and trailer location information via the Internet or a wired WAN (Wide Area Network) such as a public network, making it possible to identify the trailer and determine its current location. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Special Publication No. 2006-515696 Summary of the Invention [Problem to be solved by the invention]

[0007] The conventional trailer tracking system disclosed in Patent Document 1 requires that an RFID reader be installed on the tractor and an RFID tag be installed on the trailer in advance, which limits the scope of application of the location tracking system.In addition, there is a problem that tractors without RFID readers or trailers without RFID tags require additional hardware or modification work, such as attaching an RFID reader or RFID tag.

[0008] Furthermore, the conventional trailer tracking system disclosed in Patent Document 1 installs RFID readers at the entrances and exits of a logistics facility to manage the entry and exit of trailers, but this system assumes that the trailers are equipped with RFID tags, and there is a problem in that if the trailers are not equipped with RFID tags, the entry and exit of trailers cannot be managed. There is also a problem in that no consideration is given to how to deal with communication abnormalities between the RFID reader and the RFID tag, or between the PC in the remote monitoring room and the RFID reader.

[0009] This application discloses technology for solving the above-mentioned problems in conventional vehicle tracking systems, and aims to provide a vehicle tracking system that can identify vehicles even if a malfunction occurs in the sensor or system, without adding hardware to the trailer or modifying the trailer. [Means for solving the problem]

[0010] The vehicle tracking system disclosed in the present application comprises: A vehicle tracking system configured to track vehicles present at a predetermined facility, a vehicle tracking sensor system having a sensor that detects the vehicle, and configured to assign a temporary vehicle number to the vehicle detected by the sensor and output a signal including the temporary vehicle number and position information of the detected vehicle in an absolute coordinate system; a vehicle number management PC configured to input a vehicle number held by the vehicle; Edge computing configured to update the temporary vehicle number output from the vehicle tracking sensor system to the vehicle number output from the vehicle number management PC when parking of the vehicle is completed; Equipped with The edge computing is configured to output a signal including the updated vehicle number of the vehicle that has been parked and position information of the vehicle in an absolute coordinate system. It is characterized by the following.

[0011] The vehicle tracking system disclosed in the present application also includes: A vehicle tracking system configured to track vehicles present at a predetermined facility, a vehicle tracking sensor system including a sensor counter configured to count up at predetermined intervals and a sensor for detecting the vehicle, the vehicle tracking sensor system being configured to assign a temporary vehicle number to the vehicle detected by the sensor and output a signal including the temporary vehicle number, position information of the detected vehicle in an absolute coordinate system, and counter information indicating the count state of the sensor counter; a vehicle number management PC configured to input a vehicle number held by the vehicle; a vehicle number input PC for inputting the vehicle number held by the vehicle and the position information of the vehicle in the absolute coordinate system when a system abnormality occurs in the vehicle tracking sensor system; Edge computing configured to update the temporary vehicle number output from the vehicle tracking sensor system to the vehicle number output from the vehicle number input PC when the system malfunctions, when the system malfunctions; Equipped with The edge computing is configured to output a signal including the updated vehicle number and position information of the vehicle in an absolute coordinate system. It is characterized by the following.

[0012] Furthermore, the vehicle tracking system disclosed in the present application A vehicle tracking system configured to track vehicles present at a predetermined facility, a vehicle tracking sensor system including a sensor counter configured to count up at predetermined intervals and a sensor for detecting the vehicle, the vehicle tracking sensor system being configured to assign a temporary vehicle number to the vehicle detected by the sensor and output a signal including the temporary vehicle number, position information of the detected vehicle in an absolute coordinate system, and counter information indicating the count state of the sensor counter; a vehicle number management PC configured to input a vehicle number held by the vehicle; a vehicle number input PC for inputting the vehicle number held by the vehicle and the position information of the vehicle in the absolute coordinate system when a system abnormality occurs in the vehicle tracking sensor system; Edge computing that updates the temporary vehicle number included in the signal output from the vehicle tracking sensor system to the vehicle number included in the signal output from the vehicle number management PC when parking of the vehicle is completed, and updates the temporary vehicle number included in the signal output from the vehicle tracking sensor system to the vehicle number included in the signal output from the vehicle number input PC when the system malfunctions, and updates the temporary vehicle number included in the signal output from the vehicle tracking sensor system to the vehicle number included in the signal output from the vehicle number input PC when the system malfunctions, when the system malfunctions; Equipped with The edge computing is configured to output a signal including the updated vehicle number and position information of the vehicle in an absolute coordinate system. It is characterized by the following. [Effects of the Invention]

[0013] The vehicle tracking system disclosed in the present application provides a vehicle tracking system that can identify trailers even if a sensor or system malfunctions, without adding hardware to the trailer or modifying the trailer. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a block diagram showing the overall configuration of a vehicle tracking system according to a first embodiment. [Figure 2] 3 is a flowchart showing the operation of the vehicle tracking system according to the first embodiment. [Figure 3] FIG. 1 is a block diagram showing a configuration of edge computing in a vehicle tracking system according to a first embodiment. [Figure 4] 4 is a flowchart showing an operation of edge computing in the vehicle tracking system according to the first embodiment. [Figure 5]3 is a block diagram showing the configuration of a parking completion determination unit in the vehicle tracking system according to the first embodiment. FIG. [Figure 6] 5 is a flowchart showing the operation of a parking completion determination unit in the vehicle tracking system according to the first embodiment. [Figure 7] 2 is a block diagram showing the configuration of a matching unit in the vehicle tracking system according to the first embodiment. FIG. [Figure 8] 5 is a flowchart showing the operation of a matching unit in the vehicle tracking system according to the first embodiment. [Figure 9] FIG. 10 is a block diagram showing the overall configuration of a vehicle tracking system according to a second embodiment. [Figure 10] 10 is a flowchart showing the operation of the vehicle tracking system according to the second embodiment. [Figure 11] FIG. 10 is a block diagram showing the configuration of edge computing in the vehicle tracking system according to the second embodiment. [Figure 12] 10 is a flowchart showing an operation of edge computing in the vehicle tracking system according to the second embodiment. [Figure 13] FIG. 10 is a block diagram showing the configuration of a system abnormality determination unit in the vehicle tracking system according to the second embodiment. [Figure 14] 10 is a flowchart showing the operation of a system abnormality determination unit in the vehicle tracking system according to the second embodiment. [Figure 15] 10 is a flowchart showing the operation of a coupling unit of a system abnormality determination unit in the vehicle tracking system according to the second embodiment. [Figure 16] FIG. 10 is a block diagram showing the configuration of a matching unit in the vehicle tracking system according to the second embodiment. [Figure 17] 10 is a flowchart showing the operation of a matching unit in the vehicle tracking system according to the second embodiment. [Figure 18] FIG. 2 is a block diagram showing a hardware configuration of a control unit that configures edge computing in the vehicle tracking system according to the first and second embodiments. DETAILED DESCRIPTION OF THE INVENTION

[0015] The vehicle tracking system according to the present invention will be described below with reference to the drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.

[0016] Embodiment 1 Fig. 1 is a block diagram showing the overall configuration of a vehicle tracking system according to embodiment 1. In Fig. 1, vehicle tracking system 10 includes trailer tracking sensor system 100 as a vehicle tracking sensor system, trailer number management PC 200 as a vehicle number management PC (Personal Computer) located at the entrance of a logistics facility as a predetermined area, and edge computing 300. Trailer tracking sensor system 100 detects one or more trailers as vehicles present within the logistics facility.

[0017] Edge computing is a network technology for processing data at the periphery (edge) of a computer network. The edge computing 300 in the vehicle tracking system 10 according to the first embodiment is configured by a PC equipped with a controller unit including a CPU (Central Processing Unit), and is configured to communicate between the trailer tracking sensor system 100 and the trailer number management PC 200. The communication here refers to, for example, LTE (Long Term Evolution) or 5G (5th Generation; fifth generation mobile communication system), and a certain communication speed is guaranteed.

[0018] FIG. 18 is a block diagram showing the hardware configuration of a control unit constituting edge computing in the vehicle tracking systems according to the first and second embodiments. As shown in FIG. 18, the control unit 500 constituting edge computing 300 is composed of a processor 501 and a storage device 502. Although not shown, the storage device 502 includes a volatile storage device such as a random access memory and a non-volatile auxiliary storage device such as a flash memory. The processor 501 executes a program input from the storage device 502. In this case, the program is input from the auxiliary storage device to the processor 501 via the volatile storage device. The processor 501 may output data such as calculation results to the volatile storage device of the storage device 502, or may store the data in the auxiliary storage device via the volatile storage device.

[0019] In Fig. 1, the trailer tracking sensor system 100 is configured with a large number of sensor poles installed as sensors to detect all travel routes within a logistics facility. The installation positions of the sensor poles are measured in advance using a high-precision GNSS (Global Navigation Satellite System) receiver. Here, the installation positions of the sensor poles are determined based on latitude, longitude, altitude, and direction.

[0020] All sensor poles provided in the trailer tracking sensor system 100 output the count value of a sensor counter. The sensor counter is configured to count up by one every calculation cycle and return to "0" when it reaches a preset memory number.

[0021] The trailer tracking sensor system 100 is composed of a LiDAR (Light Detection and Ranging), a camera, and a millimeter-wave radar to detect trailers traveling within a logistics facility. The camera is used to distinguish between the trailer and other obstacles, such as people, cars, and animals. An infrared camera may also be used depending on the environment of the logistics facility.

[0022] The trailer tracking sensor system 100 outputs a signal A including a trailer number as a temporary vehicle number for the detected trailer, position information of the detected trailer in the absolute coordinate system, and a count number as counter information of the sensor counter.

[0023] The trailer number management PC 200 is installed at the reception desk at the entrance to the logistics facility. The receptionist inputs the numbers or letters printed on the casing of the trailer entering the logistics facility from outside the facility into the trailer number management PC 200 as trailer number information. The trailer number management PC 200 outputs a signal B including the input trailer number.

[0024] Edge computing 300 is composed of a PC installed in a remote monitoring room or the like, and receives signal A from trailer tracking sensor system 100 and signal B from trailer number management PC 200 as input, and based on these input signals A and B, outputs signal C including the trailer number of the trailer detected by trailer tracking sensor system 100 and position information of the trailer in the absolute coordinate system. Signal C is the output of vehicle tracking system 10.

[0025] Figure 2 is a flowchart showing the operation of the vehicle tracking system according to embodiment 1. In Figure 2, first, in step S101, the trailer tracking sensor system 100 detects a trailer within a logistics facility and outputs a signal A including the temporary trailer number of the detected trailer, position information of the detected trailer in an absolute coordinate system, and count information of a sensor counter.

[0026] The trailer tracking sensor system 100 outputs the tentative trailer number and the trailer's absolute coordinate system position information only when it detects a trailer. On the other hand, when the trailer tracking sensor system 100 detects an obstacle other than a trailer, it invalidates the detected trailer's tentative trailer number and the detected trailer's absolute coordinate system position information. Here, the detected trailer's absolute coordinate system position information refers to latitude, longitude, altitude, and direction.

[0027] The trailer tracking sensor system 100 also assigns a temporary trailer number to each detected trailer. The temporary trailer number to be assigned is not particularly limited, and may be, for example, a number counting up from "1".

[0028] Next, in step S102, the trailer number management PC 200 outputs a signal B including the trailer number input to the trailer number management PC 200.

[0029] Finally, in step S103, the edge computing 300 outputs a signal C including the trailer number of the trailer that has been parked and the position information of the trailer in the absolute coordinate system, as will be described later.

[0030] Next, the configuration and operation of edge computing 300 according to embodiment 1 will be described. Fig. 3 is a block diagram showing the configuration of edge computing in the vehicle tracking system according to embodiment 1. In Fig. 3, edge computing 300 is made up of a tracking processing unit 310, a parking slot information storage unit 320, a parking completion determination unit 330, and a matching unit 340.

[0031] The tracking processing unit 310 receives signal A from the trailer tracking sensor system 100, tracks the detected trailer based on the input signal A, and outputs signal D from the tracking processing unit. Here, signal D output from the tracking processing unit 310 is a signal that includes the provisional trailer number of the trailer detected by the trailer tracking sensor system 100, position information of the trailer in the absolute coordinate system, and a tracking flag, which will be described later.

[0032] The parking slot information storage unit 320 outputs a signal E including the position information of each parking slot. The parking completion determination unit 330 receives the signal D from the tracking processing unit 310 and the signal E from the parking slot information storage unit 320, determines whether or not parking of the trailer in the parking slot is complete, and if parking is complete, outputs a signal F including a parking completion flag, the temporary trailer number of the parked trailer, and the position information of the parked trailer in the absolute coordinate system.

[0033] The collation unit 340 collates the signal F from the parking completion determination unit 330 with the signal B from the trailer number management PC 200, and outputs a signal C including the trailer number of the trailer whose parking has been completed and the position information of the trailer whose parking has been completed in the absolute coordinate system. Here, the signal C output from the collation unit 340 is the signal C output from the edge computing 300 described above and shown in FIG. 1, and therefore is the signal C output from the vehicle tracking system 10.

[0034] 4 is a flowchart showing the operation of edge computing in the vehicle tracking system according to the embodiment 1. In FIG. 4, first, in step S201, the tracking processing unit 310 calculates the provisional trailer number of the detected trailer contained in the signal A input from the trailer tracking sensor system 100 and the absolute number of the trailer. coordinate system Based on the location information and the counter information of the sensor, the system continuously collects information such as data trends, monitors this information, and tracks the detected trailer.

[0035] The tracking processing unit 310 outputs a signal D including a tracking flag, a temporary trailer number, and position information in the absolute coordinate system of the trailer being tracked. Here, the tracking processing in the tracking processing unit 310 uses a well-known tracking technique.

[0036] Next, in step S202, the parking slot information storage unit 320 outputs a signal E containing the location information of each parking slot. The location information of all parking slots within the logistics facility has been measured in advance using a high-precision GNSS (Global Navigation Satellite System) receiver. Here, the location information refers to latitude, longitude, and parking slot ID (Identification). The parking slot ID ranges from "1" to "N," where "N" is a preset parameter and indicates the number of parking slots within the logistics facility.

[0037] Next, in step S203, the parking completion determination unit 330 determines whether parking of the trailer in the parking slot is complete, and if parking is complete, outputs a signal F including a parking completion flag, a temporary trailer number, and position information of the trailer in the absolute coordinate system.

[0038] Finally, in step S204, the comparison unit 340 compares the signal F from the parking completion determination unit 330 with the signal B from the trailer number management PC 200, updates the temporary trailer number of the trailer that has been parked to the trailer number included in the signal B from the trailer number management PC 200, and outputs a signal C that includes the updated trailer number and the position information of the trailer that has been parked in the absolute coordinate system.

[0039] Next, the configuration and operation of the parking completion determination unit 330 will be explained. Fig. 5 is a block diagram showing the configuration of the parking completion determination unit in the vehicle tracking system according to the first embodiment. In Fig. 5, the parking completion determination unit 330 is made up of a parking slot #1 parking completion determination unit 331, a parking slot #N parking completion determination unit 332, and a combining unit 333. Here, "#1" and "#N" indicate the numbers of the parking slots. Furthermore, "1" and "N" are the parking slot IDs.

[0040] Although only the parking slot #1 parking completion determination unit 331 and the parking slot #N parking completion determination unit 332 are shown here, multiple parking slot parking completion determination units are provided corresponding to multiple parking slots #1 to #N, and "1" to "N" are the parking slot IDs of the respective parking slots #1 to #N. In the following explanation, only the parking slot #1 parking completion determination unit 331 and the parking slot #N parking completion determination unit 332 will be explained.

[0041] The parking slot #1 parking completion determination unit 331 receives a signal D from the tracking processing unit 310, which includes the temporary trailer number and the trailer's position information in the absolute coordinate system, and a signal E from the parking slot information storage unit 320, which includes the position information of each parking slot, and determines whether parking in parking slot #1 is complete.If parking is complete, it outputs a vehicle completion flag of "1" and a signal G, which includes the temporary trailer number of the parked trailer and the position information of the parked trailer in the absolute coordinate system.If parking is not complete, the parking completion flag becomes "0."

[0042] Similarly, parking slot #N parking completion determination unit 332 receives signal D from tracking processing unit 310, which indicates the temporary trailer number and the trailer's position information in the absolute coordinate system, and signal E from parking slot information storage unit 320, which indicates the position information of each parking slot, and determines whether parking in parking slot #N is complete.If parking is complete, it outputs a parking completion flag of "1" and a signal H, which includes the temporary trailer number of the parked trailer and the position information of the parked trailer in the absolute coordinate system.If parking is not complete, the parking completion flag is "0."

[0043] The same applies to the parking completion determination units (not shown) other than the parking slot #1 parking completion determination unit 331 and the parking slot #N parking completion determination unit 332.

[0044] The combining unit 333 combines the signal G from the parking slot #1 parking completion determining unit 331 and the signal H from the parking slot #N parking completion determining unit 332, and outputs a signal F including a parking completion flag for the parking slot, either parking slot #1 or parking slot #N, for which parking has been completed, the temporary trailer number of the trailer for which parking has been completed, and the position information in the absolute coordinate system of the trailer for which parking has been completed.

[0045] Fig. 6 is a flowchart showing the operation of the parking completion determination unit in the vehicle tracking system according to embodiment 1. In Fig. 6, first, in step S301, the parking slot #1 parking completion determination unit 331 determines whether the difference between the position information of the parking slot #1 and the position information in the absolute coordinate system of the trailer being tracked is equal to or less than a predetermined value. The predetermined value here is a parameter set in advance, and is determined taking into account the error of the sensors used in the trailer tracking sensor system 100.

[0046] If the result of the determination in step S301 is affirmative (Yes), the process proceeds to step S302, where the parking completion flag #1 is set to "1." Here, "1" indicates that the condition for parking completion in parking slot #1 has been met.

[0047] On the other hand, if the result of the determination in step S301 is negative (No), the process proceeds to step S303, where the parking completion flag #1 is set to "0." Here, "0" indicates that the conditions for parking completion in parking slot #1 have not been met.

[0048] If the result of the determination in step S301 is negative (No), the process proceeds to step S304, where the parking slot #N parking completion determination unit 332 determines whether the difference between the position information of the parking slot #N and the position information of the absolute coordinate system of the trailer being tracked is equal to or less than a predetermined value. The predetermined value here is a parameter set in advance, and is determined taking into account the error of the sensors used in the trailer tracking sensor system 100.

[0049] Next, if the result of the determination in step S304 is affirmative (Yes), the process proceeds to step S305, where the parking completion flag #N is set to "1." Here, "1" indicates the parking slot #N This indicates that the conditions for parking completion have been met.

[0050] On the other hand, if the result of the determination in step S304 is negative (No), the process proceeds to step S306, where the parking completion flag #N is set to "0." #N This indicates that the conditions for parking completion have not been met.

[0051] Finally, in step S307, based on the flags from steps S302 and S305, the combining unit 333 outputs the parking completion flag, the temporary trailer number of the trailer that has been parked, and the position information of the trailer in the absolute coordinate system.

[0052] The same applies to the other parking slot parking completion determination units (not shown) other than the parking slot #1 parking completion determination unit 331 and the parking slot #N parking completion determination unit 332. The parking completion flag is an array of numbers from "1" to "N."

[0053] Next, we will explain the configuration and operation of the matching unit 340. Fig. 7 is a block diagram showing the configuration of the matching unit in the vehicle tracking system according to embodiment 1. As shown in Fig. 7, the matching unit 340 is made up of a normal state matching unit 341 that operates when the vehicle tracking system 10 is operating normally.

[0054] Figure 8 is a flowchart showing the operation of the collating unit in the vehicle tracking system according to Embodiment 1. In Figure 8, in step S401, when vehicle tracking system 10 is operating normally, normal state collating unit 341 collates signal F from parking completion determination unit 330 with signal B from trailer number management PC 200, and outputs signal C including the trailer number updated from the temporary trailer number of the parked trailer to the trailer number included in signal B, and position information in the absolute coordinate system of the parked trailer.

[0055] If signal F from parking completion determination unit 330 contains parking completion flag "1", as described above, normal state collation unit 341 updates the temporary trailer number to the trailer number contained in signal B output from trailer number management PC 200. Here, the trailer number indicated by signal B output from trailer number management PC 200 is the trailer number entered into trailer number management PC 200 by the receptionist using the numbers or letters printed on the trailer casing.

[0056] On the other hand, if the normal state collation unit 341 determines that the parking completion flag is "0", the temporary trailer number is not updated. In other words, the temporary trailer number that has been assigned in advance becomes an invalid value.

[0057] As described above, the vehicle tracking system 10 according to embodiment 1 is a vehicle tracking system 10 equipped with a trailer tracking sensor system 100 installed within a logistics facility, a trailer number management PC 200, and edge computing 300. When the system is operating normally and parking is complete, the temporary trailer number output by the trailer tracking sensor system 100 is updated to the trailer number recorded at the reception desk at the entrance to the logistics facility, thereby making it possible to always identify the trailer without adding or modifying hardware to the tractor and trailer.

[0058] Embodiment 2 Next, a vehicle tracking system according to embodiment 2 will be described. The vehicle tracking system according to embodiment 2 is configured to take into consideration abnormalities in the sensors or the system. Fig. 9 is a block diagram showing the overall configuration of the vehicle tracking system according to embodiment 2.

[0059] 9, vehicle tracking system 10 includes trailer tracking sensor system 100 as a vehicle tracking sensor system, trailer number management PC 200 as a vehicle number management PC installed at the entrance of a logistics facility, edge computing 300, and system abnormality trailer number input PC 400 as a vehicle number input PC in the event of a system abnormality. Trailer tracking sensor system 100 detects one or more trailers as vehicles present in a logistics facility as a predetermined area.

[0060] As in the first embodiment, the edge computing 300 is configured by a controller unit including a CPU (Central Processing Unit), and performs communication between the trailer tracking sensor system 100, the trailer number management PC 200, and the trailer number input PC 400 in the event of a system abnormality. The communication here refers to, for example, LTE or 5G, and a certain communication speed is guaranteed.

[0061] The trailer tracking sensor system 100 has multiple sensor poles installed to detect all travel routes within the logistics facility. The installation positions of the sensor poles are measured in advance using a high-precision GNSS receiver. position is determined based on latitude, longitude, altitude, and direction.

[0062] The trailer tracking sensor system 100 is composed of a LiDAR, a camera, and a millimeter-wave radar to detect trailers traveling within a logistics facility. The camera is used to distinguish between the trailer and other obstacles, such as people, cars, and animals. An infrared camera may also be used depending on the external environment of the logistics facility.

[0063] The trailer tracking sensor system 100 outputs a signal A including a temporary trailer number as a temporary vehicle number for the detected trailer, the trailer's position information in the absolute coordinate system, and the sensor's counter information. All sensors mounted on the trailer tracking sensor system 100 output the count value of the sensor counter. The sensor counter counts up by one every calculation cycle and returns to "0" when it reaches a preset memory number.

[0064] The trailer number management PC 200 is installed at the reception desk at the entrance to the logistics facility. The receptionist inputs the numbers or letters printed on the casing of the trailer entering the logistics facility from outside the facility into the trailer number management PC 200 as trailer number information. The trailer number management PC 200 outputs a signal B including the input trailer number.

[0065] The trailer number input PC 400 for system abnormality, which serves as a vehicle number input PC for system abnormality, is managed by an operator. When a system abnormality (hereinafter simply referred to as a system abnormality) occurs in at least a part of the vehicle tracking system 10, the operator moves to the parking slot where an unmanaged trailer is parked and inputs the numbers or letters printed on the trailer casing into the trailer number input PC 400 for system abnormality.

[0066] The worker also measures the absolute coordinate system position information of the unmanaged trailer using a GNSS receiver and inputs the measurement results into the system abnormality trailer number input PC 400. Here, the absolute coordinate system position information indicates latitude, longitude, altitude, and direction.

[0067] The trailer number input PC 400 for when the system is abnormal outputs a signal K including the trailer number of the input trailer and the position information of the trailer in the absolute coordinate system.

[0068] Edge computing 300 is composed of a PC installed in a remote monitoring room or the like, and receives as input signal A from trailer tracking sensor system 100, signal B from trailer number management PC 200, and signal K from trailer number input PC 400 in the event of a system abnormality, and outputs signal L, which will be described later, based on these input signals A, B, and K.

[0069] Here, when the vehicle tracking system 10 is operating normally, the signal L output from the edge computing 300 is a signal based on the signal A from the trailer tracking sensor system 100 and the signal B from the trailer number management PC, and includes the trailer number of the trailer that has been parked and the position information of the trailer in the absolute coordinate system that has been parked, and is a signal equivalent to the signal C output from the vehicle tracking system according to the above-mentioned embodiment 1.

[0070] On the other hand, when a system abnormality occurs, the signal L output from the edge computing 300 is a signal based on the signal K from the trailer number input PC 400 when the system abnormality occurs, and is a signal that includes the trailer number of an unmanaged trailer when the system abnormality occurs and the position information of that trailer in the absolute coordinate system.

[0071] Fig. 10 is a flowchart showing the operation of the vehicle tracking system according to embodiment 2. In Fig. 10, first, in S501, the trailer tracking sensor system 100 outputs a signal A including the temporary trailer number of the detected trailer, the position information of the detected trailer in the absolute coordinate system, and the counter information of the sensor counter.

[0072] The trailer tracking sensor system 100 outputs the tentative trailer number and the trailer's absolute coordinate system position information only when it detects a trailer. On the other hand, if it detects an obstacle other than a trailer, it invalidates the detected trailer's tentative trailer number and the detected trailer's absolute coordinate system position information. Here, the detected trailer's absolute coordinate system position information indicates latitude, longitude, altitude, and direction.

[0073] The trailer tracking sensor system 100 also assigns a temporary trailer number to each detected trailer. The temporary trailer number to be assigned is not particularly limited, and may be, for example, a number counting up from "1".

[0074] Next, in step S502, the trailer number management PC200 outputs a signal B including the trailer number input to the trailer number management PC200.

[0075] Here, if there is no system abnormality and the system is normal, as shown in step S103 of Figure 2 in the vehicle tracking system according to the above-mentioned embodiment 1, edge computing 300 outputs signal C including the trailer number of the trailer that has been parked and position information of the trailer in the absolute coordinate system, but in Figure 10, the step corresponding to step S103 of Figure 2 is omitted.

[0076] When it is determined that a system abnormality has occurred in the vehicle tracking system 10, in step S503, the trailer number input PC 400 in the event of a system abnormality outputs a signal K including the trailer number of an unmanaged trailer that was input in the event of a system abnormality and the position information of that trailer in the absolute coordinate system.

[0077] Finally, in step S504, the edge computing 300 outputs the trailer number of the unmanaged trailer, the position information of the trailer in the absolute coordinate system, and the system abnormality flag based on the signal K from the trailer number input PC 400 in the event of a system abnormality.

[0078] Next, the configuration and operation of edge computing 300 according to embodiment 2 will be described. Fig. 11 is a block diagram showing the configuration of edge computing in the vehicle tracking system according to embodiment 2. In Fig. 11, edge computing 300 includes a tracking processing unit 310, a parking slot information storage unit 320, a parking completion determination unit 330, a matching unit 340, and a system abnormality determination unit 350.

[0079] The tracking processing unit 310 receives signal A from the trailer tracking sensor system 100. Here, signal A is a signal that includes a temporary trailer number for the detected trailer, position information of the trailer in the absolute coordinate system, and counter information of the sensor in the trailer tracking sensor system 100.

[0080] The tracking processing unit 310 tracks the detected trailer based on the input signal A, and outputs a signal D1 including the temporary trailer number of the trailer being tracked and the trailer's position information in the absolute coordinate system. The tracking processing unit 310 also outputs a signal D2 including a tracking flag.

[0081] The parking slot information storage unit 320 outputs a signal E including the position information of each parking slot. The parking completion determination unit 330 receives the signal D1 from the tracking processing unit 310 and the signal E from the parking slot information storage unit 320, determines whether or not parking of the trailer in the parking slot is complete, and if parking is complete, outputs a signal F including a parking completion flag, the temporary trailer number of the parked trailer, and the position information of the parked trailer in the absolute coordinate system.

[0082] The system abnormality determination unit 350 receives the signal A from the trailer tracking sensor system 100 and the signal D2 from the tracking processing unit 310, and determines whether or not there is a system abnormality in the vehicle tracking system 10 based on these input signals, as will be described later, and if it determines that there is a system abnormality, it outputs a signal M including a system abnormality flag. The system abnormality determination unit 350 will be described in detail later.

[0083] The collation unit 340 receives as input a signal M including a system abnormality flag from the system abnormality determination unit 350, a signal F from the parking completion determination unit 330, a signal B including the trailer number from the trailer number management PC 200, and a signal K from the trailer number input PC 400 in case of a system abnormality. Here, as described above, the signal K is a signal including the trailer number of an unmanaged trailer and the position information of that trailer in the absolute coordinate system.

[0084] Collation unit 340 performs collation, which will be described later, based on input signals M, F, B, and K, and outputs signal N, which includes the trailer number and position information of the trailer in the absolute coordinate system. Details of collation unit 340 will be described later.

[0085] Fig. 12 is a flowchart showing the operation of edge computing in the vehicle tracking system according to embodiment 2. In Fig. 12, first, in step S601, the tracking processing unit 310 tracks the detected trailer based on the signal A input from the trailer tracking sensor system 100, and outputs signals D1 and D2.

[0086] Here, the signal D1 output from the tracking processing unit 310 is a signal that includes the temporary trailer number of the trailer detected by the trailer tracking sensor system 100 and the position information of the trailer in the absolute coordinate system, and the signal D2 is a signal that includes a tracking flag. Here, the tracking processing uses a well-known tracking technology.

[0087] Next, in step S602, the parking slot information storage unit 320 outputs a signal E containing the location information of each parking slot. The location information of all parking slots within the logistics facility has been measured in advance using a high-precision GNSS receiver. Here, the location information refers to latitude, longitude, and parking slot ID. The parking slot ID ranges from "1" to "N," where "N" is a preset parameter and indicates the number of parking slots within the logistics facility.

[0088] Next, in step S603, the parking completion determination unit 330 determines whether parking of the trailer in the parking slot is complete, and if parking is complete, outputs a signal F including a parking completion flag, a temporary trailer number, and position information of the trailer in the absolute coordinate system.

[0089] Next, in step S604, the matching unit 340 performs the matching described below based on the input signals M, F, B, and K, and outputs a signal N containing the trailer number and the position information of the trailer in the absolute coordinate system.

[0090] Finally, in step S605, the system abnormality determination unit 350 outputs a signal M including a system abnormality flag.

[0091] Next, the configuration and operation of the system abnormality determination unit 350 according to embodiment 2 will be described. Fig. 13 is a block diagram showing the configuration of the system abnormality determination unit in the vehicle tracking system according to embodiment 2. In Fig. 13, the system abnormality determination unit 350 includes a sensor counter abnormality determination unit 351, a controller unit power supply abnormality determination unit 352, a sensor signal line short-circuit / ground fault abnormality determination unit 353, a tracking abnormality determination unit 354, and a coupling unit 355.

[0092] The sensor counter abnormality determination unit 351 is configured to receive signal A from the trailer tracking sensor system 100 and determine whether or not there is an abnormality in the sensor counter from the sensor counter information contained in signal A. All sensors mounted in the trailer tracking sensor system 100 output the count value of the sensor counter. The sensor counter counts up by one every calculation cycle and returns to "0" when it reaches a preset memory number.

[0093] Therefore, if the count value of the sensor counter continues to be updated, the sensor counter is normal and the sensor abnormality flag is set to "0." On the other hand, if the count value of the sensor counter stops being updated for a predetermined period of time, the sensor counter is abnormal and the sensor abnormality flag is set to "1." The sensor counter abnormality determination unit 351 is configured to output a signal P including a sensor counter abnormality flag based on the above determination.

[0094] The controller unit power supply abnormality determination unit 352 is configured to determine the state of the voltage applied to the controller unit that constitutes the edge computing 300, and to output a signal Q that includes a controller unit power supply abnormality flag. If the voltage applied to the controller unit is lower or higher than the specifications, the controller unit power supply abnormality flag becomes "1". On the other hand, if the voltage applied to the controller unit is within the specifications, the controller unit power supply abnormality flag becomes "0".

[0095] The sensor signal line short circuit / ground fault abnormality determination unit 353 determines whether or not there is a short circuit or ground fault abnormality in the signal lines of all sensors installed in the trailer tracking sensor system 100, and outputs a signal R including a power line abnormality flag. If any signal line is short circuited or has a ground fault, the power line abnormality flag becomes "1." On the other hand, if none of the signal lines are short circuited or have a ground fault, that is, if all the signal lines are normal, the power line abnormality flag becomes "0."

[0096] The tracking abnormality determination unit 354 determines whether the tracking processing unit 310 is constantly tracking the trailer, and outputs a signal S including a tracking abnormality flag. If the tracking processing unit 310 is constantly tracking the trailer, the tracking abnormality flag becomes "0." On the other hand, if a state occurs in which the tracking processing unit 310 is unable to track the trailer, the tracking abnormality flag becomes "1."

[0097] The combining unit 355 is configured to receive the signal P from the sensor counter abnormality determination unit 351, the signal Q from the controller unit power supply abnormality determination unit 352, the signal R from the sensor signal line short-circuit / ground fault abnormality determination unit 353, and the signal S from the tracking abnormality determination unit 354, and to output a signal M including a system abnormality flag based on the respective signals P, Q, R, and S.

[0098] Fig. 14 is a flowchart showing the operation of the system abnormality determination unit in the vehicle tracking system according to embodiment 2. In Fig. 14, first, in step S701, sensor counter abnormality determination unit 351 determines whether or not there is an abnormality in the sensor counter, and outputs a signal P including a sensor abnormality flag "0" if the count value of the sensor counter continues to be updated, and a sensor counter abnormality flag "1" if the count value of the sensor counter has stopped being updated for a predetermined period of time.

[0099] Next, in step S702, the controller unit power supply abnormality determination unit 352 determines the state of the voltage applied to the controller unit that constitutes the edge computing 300, and outputs a signal Q including a controller unit power supply abnormality flag "1" if the voltage applied to the controller unit is lower or higher than the specifications, and a controller unit power supply abnormality flag "0" if the voltage applied to the controller unit is within the specifications.

[0100] Next, in step S703, the sensor signal line short circuit / ground fault abnormality determination unit 353 determines whether or not there is a short circuit abnormality or a ground fault abnormality in the signal lines of all sensors installed in the trailer tracking sensor system 100, and outputs a signal R including a power line abnormality flag "1" if any signal line is short circuited or ground faulted, and a power line abnormality flag "0" if all signal lines are normal.

[0101] Next, in step S704, the tracking abnormality determination unit 354 determines whether the tracking processing unit 310 is constantly tracking the trailer, and outputs a signal S including a "tracking abnormality flag 0" if the trailer is constantly being tracked, and a tracking abnormality flag "1" if a state occurs in which the trailer cannot be tracked.

[0102] Finally, the combining unit 355 combines the signals P, Q, R, and S, and outputs a signal M including a system abnormality flag "0" if all of these signals P, Q, R, and S are flagged as "0" indicating normality, and a system abnormality flag "1" if at least one of the signals P, Q, R, and S is flagged as "1."

[0103] Fig. 15 is a flowchart showing the operation of the combining unit of the system abnormality determination unit in the vehicle tracking system according to embodiment 2. In Fig. 15, first, in step S801, the combining unit 355 determines whether the sensor counter abnormality flag is "1." If the result of the determination in step S801 is affirmative (Yes), the process proceeds to step S802, and if negative (No), the process proceeds to step S803.

[0104] In step S803, the coupling unit 355 determines whether the controller unit abnormality flag is "1", and if so, proceeds to step S802, and if not, proceeds to step S804. In step S804, the coupling unit 355 determines whether the power line abnormality flag is "1", and if so, proceeds to step S802, and if not, proceeds to step S805.

[0105] In step S805, the combining unit 355 determines whether the tracking abnormality flag is "1" or not, and if the determination is affirmative (Yes), the process proceeds to step S802, and if the determination is negative (No), the process proceeds to step S806.

[0106] If the determination in any one of step S803, step S804, and step S805 is affirmative (Yes) and the process proceeds to step S802, the combining unit 355 outputs a signal M including a system abnormality flag "1".

[0107] On the other hand, if the determination in step S805 is negative (No), the process proceeds to step S806, where the system abnormality flag is set to "0", and the process proceeds to step S807, where the combining unit 355 outputs a signal M including the system abnormality flag "0".

[0108] Next, the configuration and operation of the matching unit 340 in the edge computing 300 will be described. FIG. 16 is a block diagram showing the configuration of the matching unit in the vehicle tracking system according to embodiment 2. In FIG. 16, the matching unit 340 includes a normal state matching unit 341, an abnormal state matching unit 342, and a switching unit 343.

[0109] Normal operation verification unit 341 receives signal F from parking completion determination unit 330 and signal B from trailer number management PC 200, verifies the information contained in signal F with the information contained in signal B, and outputs signal U including the trailer number of the trailer that has been parked and position information of that trailer in the absolute coordinate system. Here, signal F is a signal including a parking completion flag, the temporary trailer number of the trailer that has been parked, and position information of the trailer that has been parked in the absolute coordinate system, and signal B is a signal including the trailer number input to trailer number management PC 200.

[0110] The abnormality verification unit 342 receives signal F from the parking completion determination unit 330 and signal K from the system abnormality trailer number input PC 400, verifies the information contained in signal F with the information contained in signal K, and outputs signal W including the trailer number and position information of the trailer in the absolute coordinate system. Here, signal K is a signal including the trailer number of an unmanaged trailer and position information of that trailer in the absolute coordinate system, as described above.

[0111] The switching unit 343 is configured to switch between the output U of the normal state comparison unit 341 and the output W of the abnormal state comparison unit 342 as the output signal N from the switching unit 343, depending on the contents of the signal M including the system abnormality flag input from the system abnormality judgment unit 350.

[0112] Figure 17 is a flowchart showing the operation of the collation unit in the vehicle tracking system according to embodiment 2. In Figure 17, first, in step S901, normal state collation unit 341 collates information contained in signal F from parking completion determination unit 330 with information contained in signal B from trailer number management PC 200, and outputs signal U including the trailer number of the parked trailer and position information in the absolute coordinate system of the parked trailer.

[0113] Next, in step S902, the abnormality check unit 342 checks the information contained in the signal F from the parking completion determination unit 330 and the information contained in the signal K from the system abnormality trailer number input PC 400, and checks whether the unmanaged Trailer A signal W including the trailer number and the position information of the unmanaged trailer in the absolute coordinate system is output.

[0114] Next, in step S903, the switching unit 343 determines whether the system abnormality flag included in the signal M input from the system abnormality determination unit 350 is "0" or not, and if the result of the determination is that the signal M indicating the system abnormality flag is "0" (Yes), the process proceeds to step S904.

[0115] When the process proceeds to step S904, the switching unit 343 sets the content of the signal U output from the normal state verification unit 341 as the content of the signal N to be output from the switching unit 343. Therefore, if the system is normal, the signal N from the switching unit 343 will be a signal that includes the trailer number of the parked trailer, with the temporary trailer number updated to the trailer number from the trailer number management PC, and the position information of the parked trailer in the absolute coordinate system.

[0116] On the other hand, if the result of the determination in step S903 is that signal M indicating the system abnormality flag is "1" (No), the process proceeds to step S905, where switching unit 343 sets the content of signal W output from abnormality verification unit 342 as the content of signal N output from switching unit 343. Therefore, if the system is abnormal, signal N from switching unit 343 will be a signal that includes the trailer number of an unmanaged trailer parked in a parking slot and the position information of the unmanaged trailer in the absolute coordinate system.

[0117] As described above, the vehicle tracking system 10 according to embodiment 2 is equipped with a trailer tracking sensor system 100 installed within a logistics facility, a trailer number management PC 200, edge computing 300, and a trailer number input PC 400 in the event of a system abnormality, and the edge computing 300 is equipped with a system abnormality determination unit 350, so that when the system is normal and parking is complete, the temporary vehicle number, which is the output of the trailer tracking sensor system, can be updated to the output of the trailer number management PC that recorded the trailer number at the reception desk at the entrance to the logistics facility.

[0118] On the other hand, in the event of a system abnormality, the worker moves to the parking slot where an unmanaged trailer is parked and inputs the numbers or letters printed on the trailer casing into the system abnormality trailer number input PC 400. The worker also measures the trailer's absolute coordinate system position information using a GNSS receiver and inputs the measurement results into the system abnormality trailer number input PC 400.

[0119] By updating the temporary trailer number, which is the output of the trailer tracking sensor system 100, to the trailer number, which is the output of the trailer number input PC 400 in the event of a system abnormality, it becomes possible to always identify the trailer in the event of a system abnormality without adding or modifying hardware to the tractor and trailer.

[0120] Although this application describes two exemplary embodiments, the various features, aspects, and functions described in these embodiments are not limited to the application of a particular embodiment, but may be applied to the embodiments alone or in various combinations. Therefore, countless modifications not illustrated are contemplated within the scope of the technology disclosed in this application. For example, this includes cases where at least one component is modified, added, or omitted, and even cases where at least one component is extracted and combined with components of another embodiment.

[0121] Next, aspects of the vehicle tracking system disclosed in the present application will be described below as supplementary notes. (Appendix 1) A vehicle tracking system configured to track a vehicle present in a predetermined area, a vehicle tracking sensor system having a sensor that detects the vehicle, and configured to assign a temporary vehicle number to the vehicle detected by the sensor and output a signal including the temporary vehicle number and position information of the detected vehicle in an absolute coordinate system; a vehicle number management PC configured to input a vehicle number held by the vehicle; Edge computing configured to update the temporary vehicle number output from the vehicle tracking sensor system to the vehicle number output from the vehicle number management PC when parking of the vehicle is completed; Equipped with The edge computing is configured to output a signal including the updated vehicle number of the vehicle that has been parked and position information of the vehicle in an absolute coordinate system. A vehicle tracking system comprising: (Appendix 2) The edge computing a tracking processing unit configured to perform a tracking process on the vehicle based on a signal output from the vehicle tracking sensor system, and to output a signal including the temporary vehicle number of the vehicle that is the target of the tracking process and position information in an absolute coordinate system of the vehicle that is the target of the tracking process; a parking slot information storage unit that outputs a signal including location information of the parking slot in the area; a parking completion determination unit that outputs a signal including absolute coordinate system position information of the vehicle that has completed parking in the parking slot and the temporary vehicle number; a comparison unit that compares the signal output from the parking completion determination unit with the signal output from the vehicle number management PC, and outputs a signal including the updated vehicle number and position information of the vehicle in an absolute coordinate system; Equipped with 2. A vehicle tracking system according to claim 1, (Appendix 3) The parking completion determination unit includes: and determining that the parking is completed when a difference between the position information of the parking slot and the position information of the vehicle in an absolute coordinate system included in the signal output from the tracking processing unit is equal to or less than a predetermined value. 3. A vehicle tracking system according to claim 2. (Appendix 4) The parking completion determination unit includes: and determining that the parking is incomplete when a difference between the position information of the parking slot and the position information of the vehicle in an absolute coordinate system included in the signal output from the tracking processing unit is greater than a predetermined value. 3. A vehicle tracking system according to claim 2. (Appendix 5) A vehicle tracking system configured to track a vehicle present in a predetermined area, a vehicle tracking sensor system including a sensor counter configured to count up at predetermined intervals and a sensor for detecting the vehicle, the vehicle tracking sensor system being configured to assign a temporary vehicle number to the vehicle detected by the sensor and output a signal including the temporary vehicle number, position information of the detected vehicle in an absolute coordinate system, and counter information indicating the count state of the sensor counter; a vehicle number management PC configured to input a vehicle number held by the vehicle; a vehicle number input PC for inputting the vehicle number held by the vehicle and the position information of the vehicle in the absolute coordinate system when a system abnormality occurs in the vehicle tracking sensor system; Edge computing configured to update the temporary vehicle number output from the vehicle tracking sensor system to the vehicle number output from the vehicle number input PC when the system malfunctions, when the system malfunctions; Equipped with The edge computing is configured to output a signal including the updated vehicle number and position information of the vehicle in an absolute coordinate system. A vehicle tracking system comprising: (Appendix 6) The edge computing a tracking processing unit configured to perform a tracking process on the vehicle based on a signal output from the vehicle tracking sensor system and to output a signal including the temporary vehicle number of the vehicle to be tracked and position information of the vehicle in an absolute coordinate system; a parking slot information storage unit that outputs a signal including location information of the parking slot in the area; a parking completion determination unit that outputs a signal including absolute coordinate system position information of the vehicle that has completed parking in the parking slot and the temporary vehicle number; a comparison unit that compares the signal output from the parking completion determination unit with the signal output from the vehicle number management PC, and outputs a signal including the updated vehicle number and position information of the vehicle in an absolute coordinate system; a system abnormality determination unit that determines whether or not there is a system abnormality; Equipped with The system abnormality determination unit a sensor counter abnormality determination unit that determines an abnormality in the sensor counter; a controller unit power supply abnormality determination unit that determines a power supply abnormality of a controller unit that configures the edge computing; a sensor signal line short circuit / ground fault abnormality determination unit that determines whether or not there is a short circuit or ground fault abnormality in a signal line of a sensor mounted in the vehicle tracking sensor system; a tracking abnormality determination unit that determines whether or not there is an abnormality in the tracking process performed by the tracking processing unit; a combining unit that combines the results of the determinations made by the sensor counter abnormality determination unit, the determination made by the controller unit power supply abnormality determination unit, the determination made by the sensor signal line short-circuit / ground fault abnormality determination unit, and the tracking abnormality determination unit; Equipped with The coupling portion is outputting a signal including an abnormality flag indicating an abnormality when at least one of the determinations made by the sensor counter abnormality determination unit, the determination made by the controller unit power supply abnormality determination unit, the determination made by the sensor signal line short-circuit / ground fault abnormality determination unit, and the tracking abnormality determination unit determines that an abnormality exists; when all of the determinations by the sensor counter abnormality determination unit, the determination by the controller unit power supply abnormality determination unit, the determination by the sensor signal line short-circuit / ground fault abnormality determination unit, and the tracking abnormality determination unit determine that there is no abnormality, the abnormality flag indicating the abnormality is not established. 6. A vehicle tracking system according to claim 5, (Appendix 7) A vehicle tracking system configured to track a vehicle present in a predetermined area, a vehicle tracking sensor system including a sensor counter configured to count up at predetermined intervals and a sensor for detecting the vehicle, the vehicle tracking sensor system being configured to assign a temporary vehicle number to the vehicle detected by the sensor and output a signal including the temporary vehicle number, position information of the detected vehicle in an absolute coordinate system, and counter information indicating the count state of the sensor counter; a vehicle number management PC configured to input a vehicle number held by the vehicle; a vehicle number input PC for inputting the vehicle number held by the vehicle and the position information of the vehicle in the absolute coordinate system when a system abnormality occurs in the vehicle tracking sensor system; When parking of the vehicle is completed, the temporary vehicle number included in the signal output from the vehicle tracking sensor system is updated to the vehicle number included in the signal output from the vehicle number management PC, and when the system malfunctions, the temporary vehicle number included in the signal output from the vehicle tracking sensor system is updated to the vehicle number included in the signal output from the vehicle number input PC when the system malfunctions. New Edge computing and Equipped with The edge computing is configured to output a signal including the updated vehicle number and position information of the vehicle in an absolute coordinate system. A vehicle tracking system comprising: (Appendix 8) a parking slot information storage unit that outputs a signal including location information of the parking slot in the area; a parking completion determination unit that outputs a signal including absolute coordinate system position information of the vehicle that has completed parking in the parking slot and the temporary vehicle number; a system abnormality determination unit that determines whether or not there is an abnormality in the vehicle tracking sensor system; a collation unit that collates the signal output from the parking completion determination unit, the signal output from the system abnormality determination unit, the signal output from the vehicle number management PC, and the signal output from the vehicle number input PC when the system is abnormal; Equipped with The collation unit a normal state verification unit that collates the signal output from the parking completion determination unit with the signal output from the vehicle number management PC, and outputs a signal including the vehicle number held by the vehicle and position information of the vehicle in an absolute coordinate system; an abnormality verification unit that compares the signal output from the parking completion determination unit with the signal output from the system abnormality vehicle number input PC, and outputs a signal including the vehicle number of an unmanaged vehicle held by the vehicle and position information of the unmanaged vehicle in an absolute coordinate system; a switching unit that switches between the signal output from the normal state verification unit and the signal output from the abnormal state verification unit based on the signal output from the system abnormality determination unit, and outputs the signal from the verification unit; Equipped with 8. A vehicle tracking system according to claim 7, (Appendix 9) The sensor is provided in plurality, The plurality of sensors are configured to detect all vehicle roads present in the area. 9. A vehicle tracking system according to any one of claims 1 to 8. (Appendix 10) the area is a logistics facility, the vehicle is a trailer towed by a tractor; The trailer is a cargo transport trailer that carries cargo. 10. A vehicle tracking system according to any one of claims 1 to 9. [Explanation of symbols]

[0122] 10 Vehicle Tracking System, 100 Trailer Tracking Sensor System, 200 Trailer number management PC, 300 Edge computing, 400 PC for inputting trailer number when system is abnormal, 310 tracking processing unit, 320 parking slot information storage unit, 330 parking completion determination unit, 331 parking slot #1 parking completion determination unit, 332 parking slot #N parking completion determination unit, 333 combining unit, 340 matching unit, 341 normal time matching unit, 342 abnormal time matching unit, 343 switching unit, 350 system abnormality determination unit, 351 sensor counter abnormality determination unit, 352 controller unit power supply abnormality determination unit, 353 sensor signal line short circuit / ground fault abnormality determination unit, 354 tracking abnormality determination unit, 355 coupling unit

Claims

1. A vehicle tracking system configured to track a vehicle present in a predetermined area, a vehicle tracking sensor system having a sensor that detects the vehicle, and configured to assign a temporary vehicle number to the vehicle detected by the sensor and output a signal including the temporary vehicle number and position information of the detected vehicle in an absolute coordinate system; a vehicle number management PC configured to input a vehicle number held by the vehicle; Edge computing configured to update the temporary vehicle number output from the vehicle tracking sensor system to the vehicle number output from the vehicle number management PC when parking of the vehicle is completed; Equipped with The edge computing is configured to output a signal including the updated vehicle number of the vehicle that has been parked and position information of the vehicle in an absolute coordinate system. A vehicle tracking system comprising:

2. The edge computing a tracking processing unit configured to perform a tracking process on the vehicle based on a signal output from the vehicle tracking sensor system, and to output a signal including the temporary vehicle number of the vehicle that is the target of the tracking process and position information in an absolute coordinate system of the vehicle that is the target of the tracking process; a parking slot information storage unit that outputs a signal including location information of the parking slot in the area; a parking completion determination unit that outputs a signal including absolute coordinate system position information of the vehicle that has completed parking in the parking slot and the temporary vehicle number; a comparison unit that compares the signal output from the parking completion determination unit with the signal output from the vehicle number management PC, and outputs a signal including the updated vehicle number and position information of the vehicle in an absolute coordinate system; Equipped with 2. The vehicle tracking system of claim 1.

3. The parking completion determination unit includes: and determining that the parking is completed when a difference between the position information of the parking slot and the position information of the vehicle in an absolute coordinate system included in the signal output from the tracking processing unit is equal to or less than a predetermined value.

3. The vehicle tracking system according to claim 2.

4. The parking completion determination unit includes: and determining that the parking is incomplete when a difference between the position information of the parking slot and the position information of the vehicle in an absolute coordinate system included in the signal output from the tracking processing unit is greater than a predetermined value.

3. The vehicle tracking system according to claim 2.

5. A vehicle tracking system configured to track a vehicle present in a predetermined area, a vehicle tracking sensor system including a sensor counter configured to count up at predetermined intervals and a sensor for detecting the vehicle, the vehicle tracking sensor system being configured to assign a temporary vehicle number to the vehicle detected by the sensor and output a signal including the temporary vehicle number, position information of the detected vehicle in an absolute coordinate system, and counter information indicating the count state of the sensor counter; a vehicle number management PC configured to input a vehicle number held by the vehicle; a vehicle number input PC for inputting the vehicle number held by the vehicle and the position information of the vehicle in the absolute coordinate system when a system abnormality occurs in the vehicle tracking sensor system; Edge computing configured to update the temporary vehicle number output from the vehicle tracking sensor system to the vehicle number output from the vehicle number input PC when the system malfunctions, when the system malfunctions; Equipped with The edge computing is configured to output a signal including the updated vehicle number and position information of the vehicle in an absolute coordinate system. A vehicle tracking system comprising:

6. The edge computing a tracking processing unit configured to perform a tracking process on the vehicle based on a signal output from the vehicle tracking sensor system and to output a signal including the temporary vehicle number of the vehicle to be tracked and position information of the vehicle in an absolute coordinate system; a parking slot information storage unit that outputs a signal including location information of the parking slot in the area; a parking completion determination unit that outputs a signal including absolute coordinate system position information of the vehicle that has completed parking in the parking slot and the temporary vehicle number; a comparison unit that compares the signal output from the parking completion determination unit with the signal output from the vehicle number management PC, and outputs a signal including the updated vehicle number and position information of the vehicle in an absolute coordinate system; a system abnormality determination unit that determines whether or not there is a system abnormality; Equipped with The system abnormality determination unit a sensor counter abnormality determination unit that determines an abnormality in the sensor counter; a controller unit power supply abnormality determination unit that determines a power supply abnormality of a controller unit that configures the edge computing; a sensor signal line short circuit / ground fault abnormality determination unit that determines whether or not there is a short circuit abnormality or a ground fault abnormality in a signal line of a sensor mounted in the vehicle tracking sensor system; a tracking abnormality determination unit that determines whether or not there is an abnormality in the tracking process performed by the tracking processing unit; a combining unit that combines the results of the determinations made by the sensor counter abnormality determination unit, the determination made by the controller unit power supply abnormality determination unit, the determination made by the sensor signal line short-circuit / ground fault abnormality determination unit, and the tracking abnormality determination unit; Equipped with The coupling portion is outputting a signal including an abnormality flag indicating an abnormality when at least one of the determinations by the sensor counter abnormality determination unit, the determination by the controller unit power supply abnormality determination unit, the determination by the sensor signal line short-circuit / ground fault abnormality determination unit, and the tracking abnormality determination unit determines that an abnormality exists; when all of the determinations by the sensor counter abnormality determination unit, the determination by the controller unit power supply abnormality determination unit, the determination by the sensor signal line short-circuit / ground fault abnormality determination unit, and the tracking abnormality determination unit determine that there is no abnormality, an abnormality flag indicating the abnormality is not established.

6. The vehicle tracking system according to claim 5.

7. A vehicle tracking system configured to track a vehicle present in a predetermined area, a vehicle tracking sensor system including a sensor counter configured to count up at predetermined intervals and a sensor for detecting the vehicle, the vehicle tracking sensor system being configured to assign a temporary vehicle number to the vehicle detected by the sensor and output a signal including the temporary vehicle number, position information of the detected vehicle in an absolute coordinate system, and counter information indicating the count state of the sensor counter; a vehicle number management PC configured to input a vehicle number held by the vehicle; a vehicle number input PC for inputting the vehicle number held by the vehicle and the position information of the vehicle in the absolute coordinate system when a system abnormality occurs in the vehicle tracking sensor system; Edge computing that updates the temporary vehicle number included in the signal output from the vehicle tracking sensor system to the vehicle number included in the signal output from the vehicle number management PC when parking of the vehicle is completed, and updates the temporary vehicle number included in the signal output from the vehicle tracking sensor system to the vehicle number included in the signal output from the vehicle number input PC when the system malfunctions; Equipped with The edge computing is configured to output a signal including the updated vehicle number and position information of the vehicle in an absolute coordinate system. A vehicle tracking system comprising:

8. a parking slot information storage unit that outputs a signal including location information of the parking slot in the area; a parking completion determination unit that outputs a signal including absolute coordinate system position information of the vehicle that has completed parking in the parking slot and the temporary vehicle number; a system abnormality determination unit that determines whether or not there is an abnormality in the vehicle tracking sensor system; a collation unit that collates the signal output from the parking completion determination unit, the signal output from the system abnormality determination unit, the signal output from the vehicle number management PC, and the signal output from the vehicle number input PC when the system is abnormal; Equipped with The collation unit a normal state verification unit that verifies the signal output from the parking completion determination unit and the signal output from the vehicle number management PC, and outputs a signal including the vehicle number held by the vehicle and position information of the vehicle in an absolute coordinate system; an abnormality verification unit that compares the signal output from the parking completion determination unit with the signal output from the system abnormality vehicle number input PC, and outputs a signal including the vehicle number of an unmanaged vehicle held by the vehicle and position information of the unmanaged vehicle in an absolute coordinate system; a switching unit that switches between the signal output from the normal state verification unit and the signal output from the abnormal state verification unit based on the signal output from the system abnormality determination unit, and outputs the signal from the verification unit; Equipped with 8. The vehicle tracking system of claim 7.

9. The sensor is provided in plurality, The plurality of sensors are configured to detect all vehicle roads present in the area.

9. A vehicle tracking system according to any one of claims 1 to 8.

10. the area is a logistics facility, the vehicle is a trailer towed by a tractor; The trailer is a cargo transport trailer that carries cargo.

9. A vehicle tracking system according to any one of claims 1 to 8.

11. the area is a logistics facility, the vehicle is a trailer towed by a tractor; The trailer is a cargo transport trailer that carries cargo.

10. The vehicle tracking system of claim 9.

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